Company lists · Data refreshed November 2026

Top 15 Tech firms based in the United Kingdom

RevenueBase identified 687 company matches for tech firms associated with the United Kingdom as of November 2026 and tracks 163,613 professional contacts across them, including 30,696 with verified work emails. London is the largest hub.

This list covers company matches for tech firms associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
687Companies
163,613Contacts tracked
30,696Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 15 largest tech firms based in the United Kingdom

Ranked by team size
Top 15 of 687 company matches for tech firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,0001,091 contacts →

Exact match

“Global business doesn’t have to be complicated.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,0001,046 contacts →

Exact match

“We empower people to create sustainable value with the clever use of technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchChesterfield, United KingdomHQ recorded Nov 6, 2026201-500351 contacts →

Exact match

“CCS Media is now officially part of Advania UK, the tech company with people at heart.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBerkshire, United KingdomHQ recorded Nov 6, 2026201-500294 contacts →

Exact match

“We’re technology experts trusted by organisations globally to achieve successful business outcomes through our award-winning services and solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchEgham, United KingdomHQ recorded Nov 6, 202610001+281 contacts →

Exact match

“HCLTech is a global technology company, home to more than people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-500276 contacts →

Exact match

“At Six Degrees we’re all about enabling our clients’ success through technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSlough, United KingdomHQ recorded Nov 6, 202651-200248 contacts →

Exact match

“At Sharp Brains, we are your premier IT Services & Solutions Provider based in the UK, dedicated to meeting your business's unique needs with tailor-made solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchHorwich, United KingdomHQ recorded Nov 6, 2026201-500209 contacts →

Exact match

“Scan Business brings together over 30 years of designing and delivering cutting edge technology - for every size of organisation - whether SMB, enterprise or public sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchCoventry, United KingdomHQ recorded Nov 6, 2026201-500121 contacts →

Exact match

“Sanderson Group Plc, a UK-based provider of digital technology solutions, innovative software and managed services, was acquired by Aptean in 2019.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchUxbridge, United KingdomHQ recorded Nov 6, 202651-20098 contacts →

Exact match

“Adroit People Ltd is a top-notch technology firm focused to deliver Staffing Services, IT Consulting, Implementation and Support Services in UK, Europe, USA, Asia-Pacific and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchRome, United KingdomHQ recorded Nov 6, 202651-20096 contacts →

Exact match

“Key2 is a company specialized in IT Consultancy, Software Development, Systems Integration, learning services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchReading, United KingdomHQ recorded Nov 6, 202611-5084 contacts →

Exact match

“Headquartered at Reading, Berkshire in United Kingdom, Bit Wave Solutions enables global businesses to build their future by directing clients’ innovation & customization agenda.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSheffield, United KingdomHQ recorded Nov 6, 202651-20061 contacts →

Exact match

“At Millgate, our guiding principle is deceptively simple: we deliver tech products, services and solutions that actually work for you.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchHenley In Arden, United KingdomHQ recorded Nov 6, 202651-20051 contacts →

Exact match

“Meridian IT has been a leader in the UK’s enterprise technology sector since 1979 because we’ve always put people first.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchStafford, United KingdomHQ recorded Nov 6, 202651-20041 contacts →

Exact match

“In 2022, we were acquired by Node4, an IT services and consulting provider on a mission to deliver change that matters to public and private sector organisations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 15 of 687 tech firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 30,696 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Tech firms based in the United Kingdom at a glance

As of Nov 6, 2026
18.8%Verified-email coverage
238.2Average contacts per company
1-10Median size (employees)
31.6%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
402
11-50
171
51-200
51
201-500
23
501-1,000
7
1,001-5,000
3
5,001-10,000
2
10001+
4

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 687 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “tech firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 30,696 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Tech firms by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “tech firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many tech firms are there based in the United Kingdom?

RevenueBase identified 687 company matches for tech firms associated with the United Kingdom as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

NSC Global tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most tech firms?

London leads with 217 company records, followed by Birmingham (12) and Leeds (12).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 30,696 professional contacts with verified work emails tracked across these 687 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.